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| Patents for A. E. Pierce | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 103,015 | May 17, 1870 | L. Coes | Improved Automatic Friction Dog Lathe-Chuck | |
 | 113,743 | Apr. 18, 1871 | A.G. Coes | Improvement in the Modes of Forming the Heads of Wrench-Bars | |
 | 114,505 | May 02, 1871 | A.G. Coes | Improvement in Wrenches | |
 | RE4,450 | Jun. 27, 1871 | A.C. Richard | Albert C. Richard's Improved Screw-Wrench | |
 | 171,550 | Dec. 28, 1875 | J.H. Coes | Screw Wrench | |